Gravity sash-holder.



S. D. & L. B. CASE.

GRAVITY SASH HOLDER.

APPLIOATIOK FILED MAY 2, 1907.

Patented Jan. 19, 1909.

5 Z p p M w W S UNITED STATES PATENT OFFICE.

SANFORD D. CASE AND LEVERETT E. CASE, OF RIDGEWOOD HEIGHTS, NEW YORK.

GRAVITYgSASH-HOLDER.

Patented Jan. 19, 1909.

Application filed May 2, 1907. Serial No. 371,449.

T all whom it may concern:

Be it known that we, SANFORD D. CASE and Lnvnnnrr E. Cnsn, citizens ofthe United States, residing at Ridgewood Heights, in

the borough of Queens and State of New York, have invented a certain newand useful Improvement in Gravity Sash-Holders, of which the followingis a specification.

This invention relates to sash holders and more particularly tofrictional sash holders especially adapted to be used on railroad cars,the object being to provide a very simple, cheap and durable sash holderwhich can be readily secured in the ordinary window frame and one whichwill hold the sash in the desired position without any danger of itsdropping by a sudden jar.

With these objects in view our'invention consists in the novel featuresof construction, hereinafter fully described and pointed out in theclaim.

In the drawing forming a part of the specification Figure 1 is a frontelevational view of a window frame and sash partly broken away showingthe holder in section. Fig. 2 is a detail vertical sectional viewthrough our improved holder arranged in the frame. Fig. 3 is a frontview of the holder detached.

In the drawing A indicates an ordinary car window frame, B the sash and0 our improved holder.

The stiles of the frame are provided with slots in which are secured theholders G, the description of one being sufficient for both as they areformed exactly alike.

The holder comprises a rectan ilar casing C provided with flanged endswhich fit in recesses formed in the frames above and below the slots.Secured over the casing and flanged ends is a slotted plate D whichcloses the casing and is secured in place by screws passing into theframe, through openings formed in the plate adjacent each end and theopenings of the flanges of the casing. The sides of the casing areslotted as shown at O in which are mounted the stud pins E of a metalroller E which is normally held in the slot of the plate against theedge of the sash forming a bearing roller for the sash when beingraised.

Extending transversely through the easing is a shaft F on whlch ismounted the central apertured rib G of a plate G which is held intoengagement with the roller by a coiled spring H, one end of which issecured over a pin G secured to the upper end of the plate and the otherend over a pin D secured in the plate D. The bottom of the casing isprovided with a shoulder 0 forming a stop for the plate G, whichprevents the roller from riding too far up on the plate when the sash israised.

The operation is as follows: As the sash is lifted the roller rotatesforming roller bearings for the sash, as it is raised at the same timethe rollers ride up on the plate forcing the lower ends of the platesforward until they strike the shoulders of the casing and in thisposition the rollers will rotate freely as the sash is pushed up. lVhenthe sash is released the rollers will rotate in a reverse direction andstart downwardly until they wedge between the plate and sash which willhold the sash securely raised without any danger of it dropping by asudden jar. As the sash is pulled farther down the rollers will beforced over the center of the plates and the frictional contact of theplates against the rollers will form a brake for the same and preventthe rollers from rotating so that the sash will be held in the positiondesired.

What we claim is A sash holder of the kind described comprising a casingprovided with vertical slots in its sides adapted to be arranged in awindow frame, said casing being provided with a shoulder in its bottom,a slotted plate arranged over said casing, a shaft extendingtransversely through said casing, a plate provided with a centralapertured rib mounted on said shaft, a pin extending outwardly from theupper end of said plate, a pin extending from the slotted plate, acoiled spring connected to said pin, for holding said plate against theshoulder of the casing, and a roller mounted in the casing provided withstud pins extending out through the vertical slots, for the purposedescribed.

SANFORD D. CASE. LEVERETT E. CASE.

Witnesses:

JACOB I. DENTON, HERBERT J. WALKER.

